git.sur5r.net Git - openldap/blob - servers/slapd/back-meta/modrdn.c

   1 /* $OpenLDAP$ */
   2 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
   3  *
   4  * Copyright 1999-2005 The OpenLDAP Foundation.
   5  * Portions Copyright 2001-2003 Pierangelo Masarati.
   6  * Portions Copyright 1999-2003 Howard Chu.
   7  * All rights reserved.
   8  *
   9  * Redistribution and use in source and binary forms, with or without
  10  * modification, are permitted only as authorized by the OpenLDAP
  11  * Public License.
  12  *
  13  * A copy of this license is available in the file LICENSE in the
  14  * top-level directory of the distribution or, alternatively, at
  15  * <http://www.OpenLDAP.org/license.html>.
  16  */
  17 /* ACKNOWLEDGEMENTS:
  18  * This work was initially developed by the Howard Chu for inclusion
  19  * in OpenLDAP Software and subsequently enhanced by Pierangelo
  20  * Masarati.
  21  */
  22
  23 #include "portable.h"
  24
  25 #include <stdio.h>
  26
  27 #include <ac/socket.h>
  28 #include <ac/string.h>
  29
  30 #include "slap.h"
  31 #include "../back-ldap/back-ldap.h"
  32 #include "back-meta.h"
  33
  34 int
  35 meta_back_modrdn( Operation *op, SlapReply *rs )
  36 {
  37         struct metainfo         *li = ( struct metainfo * )op->o_bd->be_private;
  38         struct metaconn         *lc;
  39         int                     rc = 0;
  40         int                     candidate = -1;
  41         struct berval           mdn = BER_BVNULL,
  42                                 mnewSuperior = BER_BVNULL;
  43         dncookie                dc;
  44
  45         lc = meta_back_getconn( op, rs, META_OP_REQUIRE_SINGLE,
  46                         &op->o_req_ndn, &candidate );
  47         if ( !lc ) {
  48                 rc = -1;
  49                 goto cleanup;
  50         }
  51
  52         assert( candidate != META_TARGET_NONE );
  53
  54         if ( !meta_back_dobind( lc, op ) ) {
  55                 rs->sr_err = LDAP_UNAVAILABLE;
  56
  57         } else if ( !meta_back_is_valid( lc, candidate ) ) {
  58                 rs->sr_err = LDAP_OTHER;
  59         }
  60
  61         if ( rs->sr_err != LDAP_SUCCESS ) {
  62                 rc = -1;
  63                 goto cleanup;
  64         }
  65
  66         dc.conn = op->o_conn;
  67         dc.rs = rs;
  68
  69         if ( op->orr_newSup ) {
  70                 int nsCandidate, version = LDAP_VERSION3;
  71
  72                 nsCandidate = meta_back_select_unique_candidate( li,
  73                                 op->orr_nnewSup );
  74
  75                 if ( nsCandidate != candidate ) {
  76                         /*
  77                          * FIXME: one possibility is to delete the entry
  78                          * from one target and add it to the other;
  79                          * unfortunately we'd need write access to both,
  80                          * which is nearly impossible; for administration
  81                          * needs, the rootdn of the metadirectory could
  82                          * be mapped to an administrative account on each
  83                          * target (the binddn?); we'll see.
  84                          */
  85                         /*
  86                          * FIXME: is this the correct return code?
  87                          */
  88                         rs->sr_err = LDAP_UNWILLING_TO_PERFORM;
  89                         rs->sr_text = "cross-target rename not supported";
  90                         rc = -1;
  91                         goto cleanup;
  92                 }
  93
  94                 ldap_set_option( lc->mc_conns[ nsCandidate ].msc_ld,
  95                                 LDAP_OPT_PROTOCOL_VERSION, &version );
  96
  97                 /*
  98                  * Rewrite the new superior, if defined and required
  99                  */
 100                 dc.rwmap = &li->targets[ nsCandidate ]->mt_rwmap;
 101                 dc.ctx = "newSuperiorDN";
 102                 if ( ldap_back_dn_massage( &dc, op->orr_newSup, &mnewSuperior ) ) {
 103                         rc = -1;
 104                         goto cleanup;
 105                 }
 106         }
 107
 108         /*
 109          * Rewrite the modrdn dn, if required
 110          */
 111         dc.rwmap = &li->targets[ candidate ]->mt_rwmap;
 112         dc.ctx = "modrDN";
 113         if ( ldap_back_dn_massage( &dc, &op->o_req_dn, &mdn ) ) {
 114                 rc = -1;
 115                 goto cleanup;
 116         }
 117
 118         rc = ldap_rename_s( lc->mc_conns[ candidate ].msc_ld, mdn.bv_val,
 119                         op->orr_newrdn.bv_val,
 120                         mnewSuperior.bv_val,
 121                         op->orr_deleteoldrdn,
 122                         NULL, NULL ) != LDAP_SUCCESS;
 123
 124 cleanup:;
 125         if ( mdn.bv_val != op->o_req_dn.bv_val ) {
 126                 free( mdn.bv_val );
 127                 BER_BVZERO( &mdn );
 128         }
 129
 130         if ( !BER_BVISNULL( &mnewSuperior )
 131                         && mnewSuperior.bv_val != op->orr_newSup->bv_val )
 132         {
 133                 free( mnewSuperior.bv_val );
 134                 BER_BVZERO( &mnewSuperior );
 135         }
 136
 137         if ( rc == 0 ) {
 138                 return meta_back_op_result( lc, op, rs ) == LDAP_SUCCESS
 139                         ? 0 : 1;
 140         } /* else */
 141
 142         send_ldap_result( op, rs );
 143
 144         return rc;
 145 }
 146